Temperature-induced beam steering of Y-coupled quantum cascade lasers
Abstract
The deflection of the laser beam is achieved without any additional components such as optic or mechanic systems. This is done by injecting additional direct current into one of the two emitting branches, locally increasing the temperature. We estimate that the required temperature difference between left and right branch is approximately 12 K to achieve 2* of beam steering
- Publication:
-
Physics of Semiconductors: 30th International Conference on the Physics of Semiconductors
- Pub Date:
- December 2011
- DOI:
- Bibcode:
- 2011AIPC.1399..993A
- Keywords:
-
- optical waveguides;
- heat transfer;
- interference;
- interferometry;
- 42.82.Et;
- 44.05.+e;
- 42.25.Hz;
- 42.87.Bg;
- Waveguides couplers and arrays;
- Analytical and numerical techniques;
- Interference;
- Phase shifting interferometry